I guess I’ve said it before, but I didn’t experience the first arcs of this series as being so consistently fluffy and drama-free—quite the contrary. Aya’s initial accidental discovery that “Onii-san” was Mitsuki, Mitsuki giving away the concert ticket to the friend, Mitsuki’s “coming out at school as cool” arc, etc. were all about uncertainty, interpersonal tension, and misunderstanding.
Those arcs all resolved happily enough, to be sure, and there were indeed loads of purely fluffy moments, like the music festival arc, and Mitsuki’s interactions with Aya’s mom and siblings, etc. But I just don’t see the latest chapters as less interesting than the earlier ones, even though everything doesn’t get resolved with a “Mitsuki’s unconscious rizz” moment anymore.