The technical issues are far from the worst aspect of this anime, though. Plenty of people have already pointed out the flaws in the plot/characters, so I'll get straight to the point: a 27-year-old man pursuing a girl ten years his junior is creepy no matter how you slice it. It's frustrating how self-aware this anime is of its own disgusting premise whilst still trying to masquerade as a cute, lighthearted romcom.
Ryo is selfish, possessive, incredibly manipulative, and downright gross. Masuda, Rio, and Ichika's mother are hardly any better; each of them manipulate her into believing that its acceptable for her MANY protests against Ryo's pusuit of her to be ignored in favor of allowing Ryo's self-serving, disgusting behavior to continue unchecked. Meanwhile, the age-appropriate love interests of the two main characters are completely ignored despite being FAR better choices.
If age-gap romance is your thing, there's plenty of content out there that features two mature, consenting adults in a healthy relationship. Koikomo does not.
When Ichicka finally confesses in the last episode, she says that Ryo is "on the verge of comitting a crime" by pursuing a relationship with her. That alone should put off anyone considering watching this anime.
