Tantei ga Hayasugiru
探偵が早すぎる
A university student named Ichika Sogawa unexpectedly receives an inheritance of five trillion yen from her father. Her siblings, driven by greed, attempt to kill her, having agreed among themselves that whoever succeeds will claim the fortune. Various methods are used to end her life. To ensure her safety, her housekeeper employs Hikaru Chikumagawa, an investigator known for solving cases before they occur.