It's cause it's frighteningly common in CJK.this series has been shockingly good but it makes me sad to see the "classical music as shorthand for stifling parents" trope once again :')
I think we had multiple GL/yuri series where there were a lot of hand-holding, this week!god damn gimme a warning before you show that illicit hand-holding
(also, i think it's really funny that the author can't draw tachibana's height correctly when she's sitting)