2.5
lighthearted tense fast-paced
Plot or Character Driven: Character
Strong character development: No
Loveable characters: Complicated
Diverse cast of characters: No
Flaws of characters a main focus: Yes

I wouldn't really tag it as "explicit sex", as they didn't go further than boob sucking and touching panties.  

Kito was a bit annoying, constantly saying "I love you, Arise", even though she doesn't even know her, has seen her once from afar. That typical kouhai crush trope, but ends up actually being attracted to her and wanting to have sex. And doesn't know what personal space is. 

Overall okay for a one-shot.  

The art is cute, amateure-ish, but okay.