ShuMako

ShuMako is the het ship between Shujinkō and Makoto Niijima from the Persona fandom.

Canon
On 6/20, when the mafia boss Kaneshiro sees that Makoto's phone is in a call with the protagonist, he asks if it's her boyfriend's number.

At the beginning of Makoto's confidant, her friend Eiko mistakes the protagonist as Makoto's boyfriend, but Makoto denies it. However, later in her confidant, the protagonist has to pretend to be her boyfriend so that they could go on a double date with Eiko and her boyfriend.

On 7/24, when the Phantom Thieves go to Sojiro's house to talk to him, Makoto gets scared when they hear Futaba screaming, so she holds onto the protagonist's arm for comfort. When Futaba finally appears, it scares Makoto, and she ends up completely latching onto the protagonist's leg. When Sojiro shows up to check on Futaba, he immediately mistakes them as a couple.

When the Phantom Thieves went to steal Futaba's treasure after giving her the calling card, cognitive Wakaba showed up and produced a strong wind that blew debris in Makoto's direction. The protagonist dove in and saved her at the last second.