Kairyu's manga / #guys with kids(4)

this started so good but why did they even became couple after all that? randomly making out after no buildup I'm disappointed, other than that I really love sen he was such a nice character, would love to read more about him and his music especially, kid was cute and funny, touma was mess and I like how confused he was that's why I'm not fan of random getting together :/ hope there will be more