The "new" couple in chapter 3 actually have a manga of their own already called "Kojika Counter!". Basically it's a cameo or some sort. The couple and the manga are cute ^^
I bought the raws a long time ago because I love the author's works... Basically Hotori transfers into a school filled with delinquents and gets bullied into giving them his money. He meets Kuze, who is the leader of the delinquents. Hotori sees that Kuze can date guys too so in an desperate attempt to stop giving the delinquents his money, he asks Kuze out. The manga is mostly comedy based and despite Kuze's cold appearance, Hotori is always able to make Kuze laugh out loud. Really cute relationship.
I found this, it's in thai: https://wisteriasgarden.blogspot.com/2018/10/kojika-counter.html?m=1&zx=23d684b3fe897046
This series is really really good, and it's actually BL Its BL, but published in a shoujo magazine, I think it's the first BL manga published in Betsuma ^^
Omg ok thank you, I shipped them sm