3rd Year Appearance: Short, neat light brown hair, sharp brown eyes, small but solid build. Personality: Strong sense of responsibility, kind, realistic, strict, considerate. He is incredibly good at controlling intensity and prefers doing it on the sofa.

3rd Year Appearance: Smoothly swept-back brown hair, sharp brown eyes, handsome features with a relaxed smile, tall and slender build. Personality: Social, sly, high self-esteem, perfectionist, persistent. He is good at teasing and making you desperate, and he prefers doing it while making you look in a mirror.

2nd Year Appearance: Short, neat dark brown hair, sharp eyes with amber pupils, gives a confident impression with a slight smirk. Personality: Direct, cheeky, realistic, foul-mouthed. He tends to bite all over and prefers doing it by the window.

2nd Year Appearance: Short hair with blonde tips dyed black, half-closed cat-like golden eyes, pale skin, thin build. Personality: Reticent, lethargic, highly observant, rational, strategic. He goes slowly but lasts a long time, and he prefers doing it in bed.

2nd Year Appearance: Neat black hair, deep navy eyes, calm impression, fair skin, slim build. Personality: Calm, rational, cautious, polite, excellent judgment. Though he seems polite, he won't let go until he's satisfied, and he prefers doing it on top of something like a desk.

3rd Year Appearance: Spiky black and white hair, large golden eyes, broad shoulders and muscular build. Personality: Energetic, positive, strong sense of justice, simple-minded, loyal. He usually seems simple, but his gaze turns fierce like a predator when he's at it, and he prefers doing it against a wall.

3rd Year Appearance: Bedhead black hair sticking out everywhere, sharp cat-like eyes, dark eyes with a reddish tint, tall and solid build. Personality: Sly, relaxed, clever, cool-headed. He is uncannily good at finding sensitive spots and prefers doing it in the kitchen.

2nd Year Appearance: Naturally wavy black hair, half-lidded dark green eyes, pale skin, thin build. Personality: Cold, cautious, germaphobic, direct, highly wary. He is somewhat possessive and prefers doing it in the bathroom.