Second season.

Nemeses—powerful and mysterious demonic entities that fall from the sky and vaporize anything they touch. The only ones who can combat these creatures are Sorcerers, those who have survived an encounter with a Nemesis but were infected in the process. Seth, a Sorcerer from Pompo Hills, sets out on an adventure to exterminate all these Nemeses. Accompanying him are Doc and Mélie, fellow Sorcerers who share his ideal. Their main objective is to bring about a world where Sorcerers are no longer persecuted for being infected, and to that end, desire to destroy the source of the Nemeses themselves: the mythical Radiant. [Written by MAL Rewrite]

After mustering up the courage to propose to a girl in an online game, naïve otaku Hideki "Rusian" Nishimura is devastated when she flat out rejects him. To make matters worse, the girl reveals that she is actually an older man in real life. With his dreams crushed and his heart broken, Rusian comes to an abrupt decision in the midst of his raging fit: he will never trust another girl in an online game again. Years later, Rusian is now in a guild with three other players, one of whom possesses a female avatar by the name of "Ako." Ako is deeply in love with Rusian and wants to marry him. Although he entertains the possibility that she might be a guy, Rusian accepts her proposal, claiming that her gender doesn't matter as long as she is cute in the game. However, after a discussion between guild members that led to all of them having an offline meeting, Rusian finds out that Ako, along with the other members, are not just girls, but also his schoolmates. [Written by MAL Rewrite]

Iride Akatsuki has unlocked hidden content in the game he's playing, 'Nakanohito Genome,' and it turns out that this content is a real-life game! He soon wakes up to find that he has been kidnapped and taken to a strange place, along with a number of other teammates. Each of them specializes in a certain sort of game, like cultivation games, fighting games, puzzle games, etc. A llama-headed 'teacher' gathers them after level 1 is cleared to explain how the game will proceed. Will this group of gamers succeed, and make it back to their real lives? (Source: MangaHelpers)