TV-Series
Description
En Yufuin is a third-year student at Binan High School and a founding member of the Earth Defense Club. His surname references the famous hot spring resort of Yufuin in Japan. Standing 183 cm tall, he possesses dirty blonde hair, striking cerulean blue eyes, and notably long eyelashes.
En embodies extreme laziness and operates at his own unhurried pace, earning the title "master of sloth." Yet, during critical moments, sharp vigilance and natural leadership surface. While rarely angered, he exhibits unconventional methods of venting frustration when deeply upset. Cockroaches trigger immediate panic.
His profound friendship with Atsushi Kinugawa defines his background, beginning in middle school when En prevented Atsushi from tripping. Their bond deepened despite opposing personalities, with En describing Atsushi as essential "air" he cannot live without. Official media consistently frames their dynamic as a "married couple," highlighting Atsushi's nurturing role. Within the otome game's friendship route, En acknowledges developing romantic feelings for Atsushi and seeks advice regarding same-sex attraction.
As a Battle Lover, En transforms into the Flashing Prince, Battle Lover Cerulean, wielding water-based powers. His signature weapon is the Purifying Aqua love stick, and his attack is named Cerulean Aqua. His transformation sequence involves modestly concealing himself during moments of nudity. He participates in the group’s pre-battle proclamation: "You, who befoul our beloved Earth!"
His journey includes reconciling with the Conquest Club and graduating with his peers in the OVA, *LOVE! LOVE! LOVE!*. The 2025 movie marks his return alongside the original Defense Club members. En's hobbies include sleeping, relaxing in hot springs, and consuming onsen manju and seafood curry.
En embodies extreme laziness and operates at his own unhurried pace, earning the title "master of sloth." Yet, during critical moments, sharp vigilance and natural leadership surface. While rarely angered, he exhibits unconventional methods of venting frustration when deeply upset. Cockroaches trigger immediate panic.
His profound friendship with Atsushi Kinugawa defines his background, beginning in middle school when En prevented Atsushi from tripping. Their bond deepened despite opposing personalities, with En describing Atsushi as essential "air" he cannot live without. Official media consistently frames their dynamic as a "married couple," highlighting Atsushi's nurturing role. Within the otome game's friendship route, En acknowledges developing romantic feelings for Atsushi and seeks advice regarding same-sex attraction.
As a Battle Lover, En transforms into the Flashing Prince, Battle Lover Cerulean, wielding water-based powers. His signature weapon is the Purifying Aqua love stick, and his attack is named Cerulean Aqua. His transformation sequence involves modestly concealing himself during moments of nudity. He participates in the group’s pre-battle proclamation: "You, who befoul our beloved Earth!"
His journey includes reconciling with the Conquest Club and graduating with his peers in the OVA, *LOVE! LOVE! LOVE!*. The 2025 movie marks his return alongside the original Defense Club members. En's hobbies include sleeping, relaxing in hot springs, and consuming onsen manju and seafood curry.