Total Recommendations: 9
Both sports anime about becoming the best in a sport. Exciting matches and humor.
Both sports anime with 2 main characters. A lot of character development in both. Exciting matches.
Both about writers/illustrators and loving little sisters, same genre harem/comedy
Both series expand the classical love triangle to a pentagon, Nagi no Asukara has a more mature theme though.
Both include gaming/romance/misunderstandings (Gamers! has a lot more though)
Both contain in game/IRL relationships
MC uses the power of the enemy - "Infected" humans - Enemies become stronger over time
Going back in time to fix mistakes