The Story of a Man Named Tokiomi in His Later Years

"Just call me Tokiomi, and I will take you to hunt whales." It roughly talks about the life of the time traveler Tokiomi after he reaches old age. It should be noted that this book is not a fan of Xingyue. If I had to give a definition, I think this should be a "romance comedy about reminiscing about youth and reminiscing about youth" (big boo).