Tatsuha Uesugi

As the sixteen-year-old brother of Eiri, this young monk shares many of his sibling's defining traits and vocal mannerisms, distinguished only by his dark hair and eyes. Driven by an intense, borderline obsessive passion for Ryūichi, he frequently spends his time rewatching Nittle Grasper music videos. His personality is marked by a highly eccentric, perverted nature, making him a famously dedicated and somewhat unsettling superfan within the series.