An anthology comic of Fate/Grand Order by various mangaka.

Yoshitani, a single and unmotivated manga artist in his late 30s, is faced with an unavoidable life challenge. He wants to be popular, but he doesn't want to expend any effort doing it. A self-improvement comedy about relationship with the opposite sex, dedicated to all the guys… and girls!!

The memorial 1st volume of genius joke-smith Tenho Iwatani's "Mikosuri Han-Gekijou". Young or old, male or female, this comic is loaded with non-stop under the belt gags! (Source: Jmanga)

The manga's story centers on Aizawa, who runs into a speeding truck and time travels back to the 1990s. (Source: Anime News Network)

There are three high schools: co-ed Narayama High, all-boy Kashimori High, and all-girl Sakuragawa. Due to decreasing enrollment and financial difficulties, the three schools must be merged. However, those in charge of the reorganization could not agree on which schools to close and which to keep open. They finally decide to let the students themselves determine which school will survive. Now all the students have the chance to protect their schools, but which one will be the last one standing? The student council of Narayama High, at least, don't want to give up on their school without a fight! (Source: MangaHelpers)