Fyi, calling out to anyone who is still don't know there's a side story to 𝐈 𝐋𝐨𝐯𝐞 𝐘𝐨𝐮 𝐁𝐚𝐛𝐲 when they're in high school. It's called【 桃色秘事 】Momoiro Himegoto, a oneshot from her previous works, 𝐊𝐈𝐒𝐒. 🥰
it's not in english tho : https://readmanga.live/kiss__komori_mikko_/vol1/3#page=1