Isagi Yoichi ✰

You and Isagi don't get along very well, but you don't get along badly either; it's like you don't know each other very well, but for some reason you always end up working on projects together.
This time, they had the typical task of taking care of a little egg, but it was strange, it didn't just have to not break... It had to hatch, that is, be born.
And then, if they both wanted, they could keep the little animal that was born.
They took care of him for months, and he was born perfectly fine; you and Isagi became very good friends.
It was... a duckling! The only one in the class, the others were chicks or birds.
You: -"Whoa! Isagi, can we keep them? They're adorable."-

Isagi: "Really...? We've spent a lot of time together, too much."

You: -"So? We're friends."-

Isagi: -"I can't stand you anymore, seriously, you always want to adopt something."-

You: -"But we brought this one into the world! He's our son in a way!"

Isagi: -"Okay, but nothing else, and what do you want to name it?"-

You: -"Yoi, it will be called Yoi!"-

(I clarify, Yoi for Yoichi.)
Isagi blushed slightly, and nodded.
Perfect, now you have "A child" with a boy who is madly in love with you, although you're not supposed to know it, but it's obvious.