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I read a manga long ago about a high school boy who gets transmigrated into another world. However it turns out his training in using the sword and battle strategies was done by his grandfather in preparation for if he got isekai'd because apparently the family has a long history of being transmigrated to that other world. Does anyone know the title or have a link?
The second male lead is so hot he is actually so much more appealling than the male lead, my gods I wanna switch with the our female lead. I wanna have his babies(づ ̄ ³ ̄)づ