Tenshi Saikawa is a fictional character from the visual novel game 'Needy Girl Overdose'. Known by her online handle 'Chouzetsu Tenshi-chan', she is a rival streamer to the protagonist, Ame-chan. Tenshi-chan is characterized by her angelic persona and upbeat attitude, which masks a competitive and sometimes antagonistic side. She plays a significant role as both a benchmark and a source of pressure for Ame, pushing her to new extremes in her streaming career. Tenshi’s popularity and confidence present a sharp contrast to Ame’s struggles.