Shiho Suzui (Velocity)

Shiho Suzui is Ann Takamaki's best and only friend at Shujin Academy, due to the both of them being the "unpopular and outcast" girls of the school without many friends, so they can relate and sympathize. When Shiho met Ann, the first thing she said to her was, "Takamaki-san, your paintings suck."

She joined Suguru Kamoshida's volleyball club shortly before the start of the game but suddenly suffers from a swollen leg, supposedly an injury suffered from training. It is heavily implied she was raped by Kamoshida, and used as a cat's paw to blackmail Ann into playing along with Kamoshida's lustful intentions towards her. Kamoshida later reveals this implied sexual assault was due to Ann repeatedly rejecting his advances, "forcing" him to take out his frustrations on her only friend.

Feeling used and full of shame, Shiho attempts suicide by falling off the school roof, yet she survived. Upon learning of the incident, Ann is shocked and nearly rendered speechless. Before she passed out, Shiho reveals to Ann that Kamoshida was the motivation behind her attempted suicide. Shiho's condition worsens in the hospital and she slips into a coma, sparking Ann's desire to get revenge on Kamoshida for what he had done. Shiho falling into a coma and no other student having the will to talk against Kamoshida complicates this, and as a result, the protagonist, Ryuji Sakamoto and Ann decide to make Kamoshida confess his own crimes by stealing the arrogance in his heart.

After Kamoshida's defeat and confession, Ann reveals that Shiho had regained consciousness shortly after. However, she also sadly reveals to the protagonist and Ryuji that Shiho's mother decided to transfer schools in hopes of distancing her from the trauma and gaining a fresh start. Ann tearfully accepts this, realizing that the rumors may not go away even after Kamoshida's admittance of wrongdoing. Ann worries about Shiho moving away but ultimately realizes she will be okay as it would be the best for her.

If the player proceeds Ann's Confidant relationship, Ann makes regular visits to Shiho, who is in the middle of physical therapy to recover her strength. Near the end of the Confidant chain, the protagonist and Ann help Shiho revisit Shujin rooftop and she walks near where she jumped so she could conquer her fears and make peace with her memories. She explains that she was desperate to just escape Kamoshida's influence; she did not intend to throw herself off the roof, but there was another voice inside who urged her to kill herself, possibly Shiho's Shadow Self with suicidal tendencies. Shiho wanted to escape, not necessarily die. She notes that after she recovered, the other voice disappeared, and vows to keep in touch with Ann and follow her friend's success as a model.

After completely recovering from the hospital and transferring back to Akira and his friends' school, Shiho found herself in one of the Phantom Thieves' Metaverse adventures, where she ended up becoming a Phantom Thief herself, helping her friends defeat the demon in a dungeon and getting the treasure in the process. As a result, she became another member of the group, to the delight of Ann, and she codenamed herself Velocity.