AquaMelt

   Spoilers warning! Aquamelt

Aquamelt is the slash ship between Aquamarine Hoshino and Melt Narushima from the Oshi No Ko fandom.

Canon
Aqua and Melt's first time meeting each other was on a manga adaptation drama production called "Sweet today". That said, Aqua started acting again after Kana Arima asked him to substitute an actor whose casted to play the stalker for "Sweet Today" as he kept on complaining about the filming set, to which leads the role getting unfilled. Aqua agreed on fulfilling that role for the play. When Kana and Aqua arrived at the filming set, they met Melt Narushima. He was calling Kana out to which Kana finds the opportunity to introduce Aqua to Melt. Aqua bowed his head, in order to greet him nicely. However, unfortunately, Melt passed him as he walks away with an arrogant way of saying 'hello'. Aqua was curious, asking about what is up with his attitude, leaving him no chance of asking the other's name.

As the last episode started filming, Aqua finds out that Melt's acting is quite terrible. So to enhance his performance, Aqua came up with the idea of provoking him, as he walked closer, whispering out "You're pretty ugly up close" on Melt's ear, to which Melt widened his eyes. He grabbed Aqua by the collar, shouting over him in rage, while little did he knew it was Aqua's plan all along. Aqua smiled, looking at how he accomplished on dragging Melt to play along.

For the last scene of the episode, Aqua jumped over the heroine in order to act as if he was about to kill her. That's when Melt punched him and it was enough to leave a bruise on his face. After the shooting ends, Aqua was rubbing the bruised part of his face with a towel. Looking at how Melt injured Aqua, he voiced his apology. Aqua said it's alright, he just wanted Melt to get fired up, saying that after all, acting should carry emotions along with it, as he complimented Melt saying that he have a good performance.

Aqua and Melt once again met each other during a production of a 2.5D stage play "Tokyo Blade". They met again during the first day of the cast meeting, in which Melt finds himself approaching Aqua and Kana on the hallway. Aqua gave him a blank expression after finding out that they will be casted to play together again. During the rehearsals, Yoriko Kichijouji oftentimes gave Melt a cold shoulder, such as greeting him with a stiff replies. Seeing that, Melt oftentimes came over to Aqua, complaining at how Yoriko kept on giving him a cold shoulder.