TV-Series
Description
Ryōsuke Kaga, a 17-year-old Momozomo Academy student living independently, endures his mother's overseas work and his father's childhood disappearance—long presumed dead. His defining hypersexuality shapes his identity, earning him nicknames like "Erosuke" and "Pervsuke" and causing most female peers to avoid him. Childhood friend Mina Okura alone accepts his unfiltered expressions of libido as intrinsic to his nature.
His existence transforms after meeting Lisara Restall, an elite Grim Reaper from the dimension Grimwald who requires human life energy to function in the human world. Ryōsuke's lecherous spirit provides this vital fuel, transferring energy through proximity or touch to sustain Lisara. Their contract, forged with the broken legendary sword Gram, initially reduces his lifespan to mere months. Later revelations expose Ryōsuke's possession of Gram's missing half, inherited from his biological father—a native of Grimwald—confirming his hybrid heritage and destiny to wield the sword's full power.
His energy generation depends on erotic stimulation, peaking when fixated on Lisara. He employs a concentration technique called the "Invisible Dictionary," mentally cataloging sexual keywords to rapidly amplify output. This ability, coupled with unusually swift regeneration, becomes strategically crucial. Initially driven by omnidirectional lust, his sexuality gradually narrows exclusively to Lisara, though he maintains a chivalrous protectiveness toward all women. His libido directly fuels combat; during critical battles, explicit fantasies about Lisara unleash power surges, activating Gram.
Relationships evolve significantly. His partnership with Lisara progresses from mutual utility to romantic commitment, solidified when she rescues his soul after death by confessing reciprocal feelings. Mina, contracted to Lisara's cousin Quele, retains unrequited affection, which he gently discourages. He similarly declines Quele's romantic overtures due to his devotion to Lisara. Antagonist Galdarblog exploits his actions, culminating in Ryōsuke inadvertently shattering the interdimensional barrier during their final clash—a catastrophe he accepts responsibility for repairing.
Later events confirm his hybrid heritage and ongoing relationship with Lisara, who now resides with him. His energetic focus remains solely on her, though her resistance to physical escalation yields comedic rejections. The restored Gram and his Grimwaldian lineage hint at unresolved duties, yet his primary role centers on supporting Lisara while navigating his human life.
His existence transforms after meeting Lisara Restall, an elite Grim Reaper from the dimension Grimwald who requires human life energy to function in the human world. Ryōsuke's lecherous spirit provides this vital fuel, transferring energy through proximity or touch to sustain Lisara. Their contract, forged with the broken legendary sword Gram, initially reduces his lifespan to mere months. Later revelations expose Ryōsuke's possession of Gram's missing half, inherited from his biological father—a native of Grimwald—confirming his hybrid heritage and destiny to wield the sword's full power.
His energy generation depends on erotic stimulation, peaking when fixated on Lisara. He employs a concentration technique called the "Invisible Dictionary," mentally cataloging sexual keywords to rapidly amplify output. This ability, coupled with unusually swift regeneration, becomes strategically crucial. Initially driven by omnidirectional lust, his sexuality gradually narrows exclusively to Lisara, though he maintains a chivalrous protectiveness toward all women. His libido directly fuels combat; during critical battles, explicit fantasies about Lisara unleash power surges, activating Gram.
Relationships evolve significantly. His partnership with Lisara progresses from mutual utility to romantic commitment, solidified when she rescues his soul after death by confessing reciprocal feelings. Mina, contracted to Lisara's cousin Quele, retains unrequited affection, which he gently discourages. He similarly declines Quele's romantic overtures due to his devotion to Lisara. Antagonist Galdarblog exploits his actions, culminating in Ryōsuke inadvertently shattering the interdimensional barrier during their final clash—a catastrophe he accepts responsibility for repairing.
Later events confirm his hybrid heritage and ongoing relationship with Lisara, who now resides with him. His energetic focus remains solely on her, though her resistance to physical escalation yields comedic rejections. The restored Gram and his Grimwaldian lineage hint at unresolved duties, yet his primary role centers on supporting Lisara while navigating his human life.