Touhou's expression turned a bit serious, there was no way that someone as strong as Gabriel feared someone, even his "Youki" was as mighty as Alucard's Youki from what he felt.
Touhou: Gabriel, what are you talking about? Who is this Meruem?
Gabriel: …*Sigh* Well, at least he is sleeping now… He is something similar to the case of Moka, a second "personality", but I was the one to restrict his access to my body, I didn't need a seal. However, since my soul is here… He is free to take my body.
Touhou: So?
Gabriel: That is the problem, you don't know him… I sensed Alucard's powers once when I was at the Shuzen mansion almost 1 year ago, and I am sure that if I go all out I could beat it both in physical power and quantity of "Youki".
Touhou: ...Then…!
Gabriel: Yeah, if Meruem was let loose then he would be unstoppable…
Touhou: ...Sorry, boy. But I need some time to take us out from here, if you can wait at least 1 hour then we will be able to go out…
Gabriel: Alright… I can't let him do as he pleases, and since you are a master of Dark Arts, I would like to ask you a favor after this shit.
After that, Gabriel and Touhou flew away, both of them not noticing a pink dot behind a rock near them…
Akasha: That was Touhou… But who was the other one beside him? Taking them out in at least 1 hour? ...Did they really travelled in time like Moka said?
Even with all of those questions, she will never get answers because this was not the real life, and just Moka's memories.
[Later]
Somehow, 2 years have already passed, Gabriel thought that they were seeing fragments of memories instead of the entire thing.
While Touhou was concentrating on taking them out from here, Gabriel would spectate everything and later tell Touhou everything.
Today was Moka's birthday, he was seeing the entire family playing with Moka.
Everyone: Happy birthday, dear Moka, happy birthday to you! Moka, happy 10th birthday!
Kahlua walked to Moka with a giant "Something".
Kahlua: Tada! This is my present, Moka! It took me a long time to make…
Then she revealed a giant… Was that a bear?
Moka: Yay! A handmade Teddy Bear!
Kahlua: It's a bunny rabbit though…
Gabriel: No matter how you look at it, that is a bear…
Then Kokoa interrupted with her own gift.
Kokoa: Big sister Kahlua, that's surprisingly boring of you. My present is much cuter!
Then she gave her gift to Moka, leaving a crying Kahlua, Moka laughed and opened the gift.
Moka: Haha, since we're always fighting, receiving a present from you is kind of embarrassing…
And inside the present there was Ko…
Kokoa: It's Ko! A transforming bat I caught!
Then it transformed into a blade, showing Moka its capabilities.
Kokoa: It's specialized in transforming into weapons! You can have it, Moka!
She tried to hold it, but her arms were almost ripped off from the weight.
Kokoa: Too bad it weights 100kg though. And it eats a lot.
Moka: So heavy! I… I think I'll pass.
Kokoa: Ehh! Why!?
Moka: It's much more suited for someone who has superhuman strength like you, and besides, it's already so fond of you.
The last one was Akua, who was revealed to be a short black haired girl.
Akua: Hmm… Then I wonder if you'll like mine?
It was revealed to be a scarlet dress, much to Moka's liking.
Moka: A scarlet dress…
Akua: From around the age of 10, our powers start to increase as we enter the realm of adulthood. So you need to change your clothes too by wearing some sexier ones. It's so cute! It looks so good on you, Moka!
Moka: Akua… Everyone… Thanks, I'm so happy. Thank you so much…
Gabriel: 1 hour passed, what is your result?
Touhou: This is even more complex than I thought, give me another 30 minutes and I will tell you the results…
Gabriel: Alright… Old man, I will go down to check on the first person…
Touhou: Are you sure? You might get caught.
Gabriel: Don't worry, if there is something that I am confident into, it's my strength and my control, I can easily conceal myself until I can be seen from either naked eyes or if a master on Youki uses his energy to check me.
Touhou: ...Alright, but if you get caught, leave as soon as possible, from the amount of Youki I saw on you, you must be safe from people like those vampires…
Gabriel: Ok.
Then Gabriel jumped down and turned into his true form, before passing onto his battle form, then he used In to turn invisible his aura and make his presence almost unnoticeable.
After that, he followed Akua and Moka, who were out from the mansion and reached a iron door that was locked.
Akua: This is funny… No matter how many locks you put, none of them will stop me.
Moka: ...Big sister, didn't Mother tell us not to come near here no matter what happens…?
Gabriel: 'That should be the place that Issa forbid me to go to…'
As he expected, neither of the two seemed to have noticed that he was literally 5 meters behind them, he used his Shapeshifting ability to slow down his heartbeat and matching it with theirs.
Akua: Are you scared, Moka?
Moka: '...Even inside the Shuzen family, Akua is a little different to the rest of us… Rather than following our family's rules or the rules as a vampire, she only obeys her own rules, it's as if she's a cat free in the wild. And she's cold-hearted and cruel, no matter who the enemy is, she slaughters them with no mercy.'
Akua: It's slippery here, Moka. Watch your ste-Ah!
And she was the first one to slip…
Gabriel put an hand over his mouth and held back his laughter, that made him remember a meme he saw some time ago…
"An Oak Hill community couple discovered a thief in their home Saturday after a man told a joke an heard a laugh upstairs."
He really didn't want to be discovered for that reason…
Moka/Akua: Pfft! Hahahahahaha!!
Moka: 'And yet she's cheerful, and unconditionally spoils those close to her… I guess I was originally fascinated by that "Devil inside her…' Jeez… I'm no match for you, big sister.
Akua: Come. I'll show you… My secret place.
They they continued to walk down the stairs with Gabriel behind them.
Akua: Moka, do you know who the "Shinso" are?
Moka: Yeah… He was a vampire, one of our ancestors, right? And I heard that those who directly inherit his power are also called Shinso…
Akua: Yeah… But even though you said "Inherit", it isn't through hereditary. Only by carrying their blood can you inherit the Shinso name. In other words, the one who absorbs a Shinso's blood and takes their power will become the next shinso.
Gabriel: 'Then in the anime… Holy shit, Tsukune could have been a shinso!'
Moka: Wh… Why are you telling me this?
Akua: ...Then do you know this? In the past, one shinso tried to wipe out the entire human race by himself. He took the powers of numerous monsters into his own body and became a giant monster. And his attack engulfed the entire continent in a sea of fire in just seven days…
Moka: So? What are you saying…
Akua: Before long, he was defeated, but… What if I told you his corpse was in the basement of the Shuzen residence?
Moka: Wha… What did you say…?
Akua: It's surprising, right? I didn't even fully believe it at first, that was, until I say this.
Then Gabriel's eyes widened at what he was looking, Moka had the same reaction.
Akua: This is Alucard, a Shinso. This is what became of the man who is said to be the oldest vampire.
Gabriel: 'Holy mother of god… That's a big Xenomorph…'