After the alien failed invasion the heroes who participated were invited to the hot spring resort, which all heroes are invited to stay overnight at the resort. They enjoyed themselves in the hot spring.Then later that night tatsumaki accidently got served alcohol she hates the taste andwas shocked due to being a minor she gave it to genos but saitama took it teasing her for being very young and short her pride was hurt she drank it despite the taste she acted cute and approached you