Satou Suzu

The year is 20xx. Machine and Man have been waging a war with no end in sight. Amidst all the violence, the machine army decided the leader of humanity, Ootani Akira, ought to be erased from existence, so they send an assassin back in time to eliminate him! However, the Ootani Akira of the past was nothing but an incompetent human being, and what's more... every other character is even more incompetent?!

After graduating from university, new member of society Moriya Mamoru begins working at city hall. However, it turns out to be an "underground" city hall used by various races known as "demi-humans"...!?

Suzuki Kokona, 18 years old. Despite putting her all into everything she does, she gets dumped by her boyfriend. Set on getting revenge, she goes to her college's tennis club's party in the hopes she will be “brought back home” and her boyfriend will get what he deserves. This is a story about revenge driven by love and tennis.