Masashi Mikami

Gekirangers meet the Boukengers when a precious item is stolen from the SCRTC headquarters. Meanwhile, another item in safekeeping of RinJyuDen is also stolen , and they find out that these two items can grant ultimate power when combined. Gekirangers team up with Boukengers to stop the villain from space who threatens to destroy Earth with this ultimate power... (imdb)

Powerful relics known as Precious have started to appear throughout the world. However, the various Negative Syndicates wish to take the Precious for themselves and utilize them for evil means. To make sure that the Precious do not fall into the hands of the Negative Syndicates, the Search Guard Successor Foundation has developed its own special operations team, the Boukengers, to do battle and collect some of the more dangerous Precious. (mydramalist.com)

Hideaki and his 6th grade classmates Takeshi, Chie and Tetsuya, wake up to find themselves in their old elementary school after the suicide of their teacher. They are forced to torture one another by playing X Game, which was created by Takeshi to bully a girl named Mariko. (imdb)