Our protagonist proposes to a female character in an online game, only to find out that the player is actually a guy. Traumatized by that, he decides to never trust a girl online, but now, two years later, a female player is proposing to him. What will happen?
Netoge no Yome wa Onnanoko ja Nai to Omotta? - MyAnimeList.net
And you thought there is never a girl online? (TV) - Anime News Network
Episode 5 - LOL at the part where Nishimura enters Ako's room. A overused cliche at the start where he saw Ako in the middle of changing. But at the second time he entered, Ako said "be gentle" HAHAHA