Hmmmm, it has yuri undertones. But no outright yuri if that’s what your asking. There is one character that has fallen in love with our dear Kuro, but it is one sided. The story is more about growing up past social anxieties and finding warmth in friendship and trust in an ever growing circle of wonderfully diverse personalities.
Or
A girl gets a harem of cute girlfriends. Depends on how you look at it.