Sona heard the story with a frown on her face. She was calculating the dangers they will face if any information about his new powers got out.
"Sona-san… I can just go if it—"
"Hiro stop saying that, you are important to me. I won't let anyone harm you. We'll hide your power from everyone. Onee-sama will have some solution about it."
Despite having an unrivalled intelligence among her peers, she was still fourteen years old.
"Where is Sera onee-chan anyway?"
"She… went to the studio for her magical girl shoot."
"..."
"Sona, I'll get stronger so we can fulfill your dream…"
"You don't need to worry about that. Just having your feelings is enough for me."
She placed her hand on his cheeks, a soft smile formed on her face.
"So-tan~ Hiro-chan~ I'm back!"
A voice came from outside the room, probably from hallways. Sona put down her hand and coughed dryly. Hiro tilted his head in confusion.
*Bang!*
The door was opened with a bang, it still survived thanks to the enchantments on it. The culprit was a lovely girl in her late teens, black hair tied in twin tails. She might appear as an elegant young lady if not for her outfit, which was a pink magical girl dress.
"Hiro-chan! Thank Maou, you are fine! I rushed back the moment I heard something happened to you."
She pulled his head in her large bosom, clearly unfit of her child-like body, yet it looked natural on her.
"Onee-chan was so worried about you."
"Onee-sama!" Sona interjected in a stern tone.
"Oh my, So-tan also needs some hugs? Come here and rest your head in Onee-chan's embrace~"
Hiro struggled to free himself from the female devil's clutch. He might have suffocated in the soft heaven without using a spell to breathe.
"Onee-sama! I'm serious, it's about Hiro."
Serafall's face turned serious, she let go of Hiro and enclosed the room in a barrier to stop anyone from listening.
"What is it?"
Sona nodded and explained the newfound powers of Hiro, he also demonstrated the Holy power in front of them.
Sona's body trembled instinctively, despite seeing it for the second time. She was a high class devil, yet in front of this holy power cold chills crawled all over her body.
Serafall frowned, she understood this power better than Sona. This light element purity could match a two-winged angel. The situation was more serious than Sona, who was still somewhat unskilled than Serafall in diplomacy had guessed.
"Don't ever show this power in front of anyone unless I agree. You understand?" She said in a serious voice, unlike her usual cheerful tone.
Hiro nodded his head, feeling a bit touched inside.
"Besides, Onee-chan promised to protect my cute and handsome Hiro-chan~"
This was a promise from Serafall Leviathan, also known as the Strongest female Devil in Underworld.
With another quick nod, he said, "I will, Sera onee-chan."
"So-tan, I arranged a meeting with your future bishop. Be ready tomorrow and Hiro-chan, you'll accompany So-tan."
A tad bit of surprise flashed in the calm eyes of Sona. "Who is it?"
Serafall winked mischievously. "That is a surprise~"
Sona nodded her head with a sigh, her Onee-sama antics really boggled her mind.
***
Evening…
After taking a relaxing bath, Hiro was rather hungry and tired. He opened the door to Dining Hall and his somewhat droopy eyes shot open in surprise.
Pop! Pop! Pop!
"Hap-py Birth-day Hii-rooo-chaaaaan~"
Sounds of balloons bursting followed by Serafall's overly energetic voice broke him out of the stupor, he forgot the fact that it was his birthday today. He stood there frozen until another voice called out to him.
"Come inside."
Hearing Sona's strict tone, he entered the mildly decorated room. Serafall and Sona stood there behind a large piece of ice.
'Happy 14th Birthday, Hiro' was neatly carved in pink letters neatly on deep blue ice. Above it, a cake covered in white icing, decorated with red roses. Rather than cake, it was better to simply call it a tower of sweetness considering it had more than ten layers.
"Thanks…"
It was all he could say to convey his mountain-sized gratitude. Sona felt the emotions in his words as a bright smile appeared on her face.
"Congratulations on your 14th birthday."
"We'll dress So-tan in magical girl dress and watch Miracle☆Levia-tan~"
Sona's gaze turned blank as she whispered, "Kill me…"
Hiro couldn't help but chuckle softly at her reaction. Sona, noticing his laugh, flashed a sweet smile sending chills down his spine.
"Let's cut the cake, I feel very hungry…"
He decided to change the topic, every time she smiled like this, it never ended well for him.
After cutting the cake and the brief dinner, the small party came to an end. Sona and Serafall took out their presents with a smirk on their face.
Seeing their expression, he decided to unwrap the presents here.
First was Sona's gift. He pulled the ribbon on the box, something outside of his expectations emerged from the colorful box.
"Amazing..."