Hiroto opened the letter and tears started streaming down without him knowing, as the letter is Minato and Kushina.
"Hey Hiroto, if you are reading this letter that means we are not there with you. We prepared this contingency in the event the Kyuubi is released from its seal during Naruto's birth. We don't know when you are seeing this so we will say everything we want to say.
'I will go first Hiroto, forgive mother as she can't see your first day in the academy, congratulate you on your graduation, teach you techniques or jutsus. I couldn't be there to help you woo the girl you like or console you after your first kill. Don't worry Hiroto mother will always watch over you and surround yourself with the people you love and live your life without regrets. In the scroll I noted down every jutsu of my mine including my sword, so take this as my last gift to you. Most importantly don't take after that pervert Jiraiya or I will crawl my way back and you know how it will end. I always love you my son Kushina wrote in the letter" it took a few minutes for Hiroto to compose himself, and he continued reading the letter.
"'So I had to cut her short or she might turn the letter into a book. Sorry Hiroto as a father I failed to protect both you and Naruto atleast I hope I succeeded in my role as the Hokage. All my jutsus are also in the scroll along with the key to Naruto's seal I trust you will use them wisely. Sorry for burdening you with the responsibility of taking care of Naruto. We love you, my son.'" with that, the letter ended.
Hiroto took a few moments to get back to normal he took a glance at the jutsus in the scroll to find Rasengan, flying thunder God jutsu, the key to Naruto's seal along with many fūinjutsu coupled with the sword of Kushina, he left them there and went to the other corner of the room.
Hiroto picked up the other letter and opened which didn't get damaged because of the passage of time, " Hey little one, I don't know if you are my son or daughter atleast they are the ones I have in mind when I am writing this letter so if you are not my son or daughter atleast you are blood-related to me.
I am sorry I am not there with you and if you are disappointed with me or hate me, don't worry I will be doing the same if my father left me and my mother to fend for myself. Can you pass my word to Mizuko that I wish for her to be happy and love her?
If you are a boy look after your mother and always listen to her or I know your aunt Kushina will set you straight. Talking of Kushina did that brat Minato marry her if not I want you to beat that bastard. Did that brat Kakashi get out of his emo phase? Did that old monkey give up the Hokage seat and did that brat Minato become Hokage just like he wanted? Sorry I got sidetracked, anyway are you a ninja? Don't worry even if you don't want to become a ninja know that you got my support. Find one you love like I found your mother and live happily. If you are my daughter then boys are shit and you are not allowed to date at least till your aunt Kushina's hair turns grey. Kiddo I don't even know your name or how you look but I love you so much.
If you are a ninja use the scroll this attached to and say my name afterward, if they find you worthy they will give you all my techniques, my sword, and a surprise which you can obtain if you are ready for the responsibility it brings along" with that the letter ended.
Hiroto hugged the letter tightly and tried to sense any chakra that is lingering on the letter so that he could etch his father's chakra signature permanently to his heart, but alas as so many years passed he didn't find any chakra on the letter.
Hiroto saw the scroll and is currently not in the state to deal with it so he let it be for the day. He took the two letters along with him and left the room making sure everything is back to normal he left the basement to sleep.
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...
Teuchi is closing the restaurant he noticed the sky and saw the dark clouds in the distance arriving along the flashes of lightning it is bringing along.
"It looks like a storm is due to arrive soon in Konoha" he muttered and closed the shop's entrance and left.
...
...
Itachi took a day off and spent some time with his family and Izumi.
The next day he waited for his childhood friend and Anko at their old training ground as they'd decided beforehand, minutes ticked by and Anko arrived with Dango in both her hands.
They greeted each other and waited patiently for their remaining friend, they waited for nearly an hour but found no sign of Hiroto.
"Let's go to Hiroto's house" Itachi suggested.
Anko agreed to that and both left for Hiroto's house, they knocked on the door and found no response but heard a faint sound from the house's backyard which has a big open space.
Itachi and Anko made their way to the backyard with vigilance and found Hiroto sweating so they watched what their friend is struggling with.
Hiroto bit his finger for a drop of blood and did the following handsigns Boar → Dog → Bird → Monkey → Ram, he followed the last handsign with his hand on the ground and said 'Summoning jutsu' in a low voice.
As soon as the jutsu is done smoke appeared more than an average person's height and is expanding in width, slowly covering Hiroto too who had a smile on his face slowly the smoke cleared to reveal the summoned animal.
Anko and Itachi who are watching are shocked to see the new summon animal.
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Chapter name: Letters and Summoning contract