T. P. Bon plot
Ordinary high school student Bon Namihira meets Time Patrol member Ream Stream, a girl from the future. The Time Patrol agents rescue people who have died unfortunate deaths that do not significantly change the course of history. During these missions, the memories of anyone who sees Ream and the other agents are erased. However, Bon's memory mysteriously remains intact, so he is recruited as a Time Patrol agent in training. Bon works with Ream to carry out missions and is excited about using tools from the future. Bon sometimes gets carried away, but through the missions he touches the lives of people who lived wisely in every era.