Miraculous Ace Savvy: Iceheart

Snow covered the entire town of Royal Woods and the whole Loud family was outside having a blast. Lincoln slid belly-first on his sled across the frosty lawn and accidentally ran right into Luna's roadie and friend Chunk. After he apologized and asked what Chunk was doing there, the big guy said that he was there to see Luna and give her something.

Chunk looked incredibly nervous as he pulled a crumpled up ball of paper out of his pocket and gave it to Lincoln, asking him to give it to Luna for him. When Lincoln unfolded it, he saw that it was a music sheet with a song that Chunk had written himself just for Luna. He asked why Chunk would write a song for her and by the way the big guy reacted (stuttering, twitching, sweating like a pig despite the freezing temperature), he figured out the answer. Chunk had a crush on Luna.

He tried to deny it, but Lincoln wasn't fooled. Chunk snatched the song sheet out of Lincoln's hands and crumbled it up again, declaring that it wasn't ready yet anyway. The boy tried to reassure him that Luna would love the song the way it was and that he should give it to her himself. Luna was just nearby having snowball fight with Lynn, so it was the perfect chance.

Lincoln urged Chunk to go talk to her. As soon as he approached her, Luna said hi to him and asked him what he was doing there, but he was so afraid that he was unable to answer. She started to grow concerned, asking him if he was okay, but he ran away just in time to keep from peeing himself, leaving Luna very confused.

When Lincoln asked Chunk what happened, Chunk snapped at him and told him that the song wasn't ready. That Luna would hate it and in turn, hate him, too. Then he ran off, really more angry at himself for being such a coward. It would be so much easier if he didn't have to have such complicated feelings for Luna. His despair was easily detected by Hawk Moth, who sent an akuma out to evilize him by possessing him through his crumpled song sheet. He offered to alleviate Chunk's pain by making his heart and body as cold as ice, taking away his ability to feel emotion. In exchange, of course, he would have to bring Hawk Moth Ace Savvy's miraculous.

Chunk agreed and was transformed into the frozen juggernaut, Iceheart. In addition turning his entire body into solid, unmeltable ice, he was also given much greater size and strength, as well as an ice breath to make other people's hearts as cold as his. In the process of trying to capture Ace's miraculous, he came across Luna and captured her as well, which meant Lincoln now had to rescue his sister and defeat a giant, frozen, "heartless" monster. Although, maybe he wasn't so heartless after all.