Sinopsis
Asahi is on a quest to take down a party who uses its status for evil, but one of their crimes hits a little close to home—falsifying ranks. An adventurer who is suspicious of Asahi decides to take a closer look at him. Will Asahi’s secret be discovered?.My One Hit Kill Sister Isekai One Turn Kill Neesan; Ane Douhan no Isekai Seikatsu Hajimemashita