|Manga Debut||Chapter 48|
Renko is a manga-exclusive female character that was one of Longchamp's various ugly girlfriends.
Renko has pink hair reminiscent of Bianchi's, but has small eyes, freckles, unruly eyebrows, strange cheekbones that jut out like cheeks, and a broad jawbone.
Renko appears on the cruise to Mafia Land when Tsuna is looking for Bianchi. Longchamp introduces her to Tsuna as his girlfriend. When they arrive at Mafia Land, however, when Tsuna questions Longchamp about Renko, he dismisses her, stating that he had broken up with her long ago.