Hosojima Riku
細島 陸
| Hosojima Riku細島 陸 | |
| Hair | Ahoge, Grey, Short, Spiky Bangs |
| Eyes | Blue |
| Clothes | School Uniform, Shirt, T-shirt, Watch |
| Personality | Closet Pervert, Curious, Optimist |
| Role | Master, Non-blood-related Brother, Tsukkomi, University Student |
| Engages in | Cooking |
| Subject of | Accident, Fainting |
| Visual novels | Side character - Nekomata ~Futanari Hen~ Protagonist - Nekomata ~Kuroneko Hen~ |