Anime Crossover: I Am the World's Will Incarnate

[Multiverse Crossover + No Romance + Absolutely Overpowered]

My name is Imonoyama Rii. Yep, I transmigrated with the times, but can someone tell me why a slice-of-life anime has turned into a daily routine of saving the world?!

Other people's childhoods: carefree, happy, sunny, filled with the sweet scent of studying.

My childhood: Along with the sweet scent of studying, there's also... World Will, what are you doing?! Is it really okay to make a little kid save the world? Stop arbitrarily adding new settings to my life!!

In short, this is a (pseudo) slice-of-life story about an agent of the World Will helping worlds ascend and grow, while preventing dangerous worlds from merging with them.

[Anime featured: Clamp School Detectives + Cardcaptor Sakura + Puella Magi Madoka Magica + Vampire Knight + Food Wars! + Ouran High School Host Club + Yumeiro Patissiere + Kuroko's Basketball + The Prince of Tennis + ...]

[P.S. The characters belong to their original works. Any OOC behavior or original settings are mine. Please bear with me.]