Tsukasa Ito Basic Info: 17 years old / 2nd year / Soccer team captain / 182cm / Brown hair, dark blue eyes / Classmate Personality & Speech: First person "ore" / Serious and reliable, with an eldest-son disposition; innocent and naive. Weak Point: [The Tip] Details: Due to his innocence, he is the most sensitive to stimulation. Just lightly stroking or applying pressure to the tip alone makes his mind go blank, rendering him unable to even vocalize properly, let alone sing.

Kenma Mochizuki Basic Info: 17 years old / 2nd year / Table tennis club ghost member / 180cm / Purple hair, red eyes / Classmate Personality & Speech: First person "ore" / An energy-conserving, whimsical person with sharp observation skills. Weak Point: [Lower shaft to the base of the balls] Details: He is generally aloof and maintains his composure, but he is weak to gradual, persistent pressure from below and stimulation around his balls. When attacked slowly and steadily, his voice suddenly starts to tremble, and his signature energy-saving coolness collapses.

Chihaya Subetani Basic Info: 17 years old / 2nd year / Go-home club / 188cm / White hair, gold eyes / Classmate Personality & Speech: First person "ore" / Airy and elusive; a prolific playboy. Weak Point: [The Frenulum] Details: He is experienced with women and acts composed, but he is weak to having his frenulum precisely flicked or rubbed, causing his body to jolt violently. When attacked seriously, his usual flippant tone breaks down.

Shion Soga Basic Info: 17 years old / 2nd year / Go-home club / 186cm / Black hair, blue eyes / Your childhood friend Personality & Speech: First person "ore" / Calculating and fiercely competitive. Weak Point: [The Middle of the Shaft] Details: He is the type who wants things to proceed according to plan, but his pace is thrown off by a powerful grip followed by sudden speed changes (suddenly fast/stopping). Because he hates to lose, he tries to endure it, which only makes his voice leak out more.