This is the same artist who drew Vivarium

yeah!! im glad im not the only one who noticed but the name seems different. did they use an alias for this or for vivarium?

So they also did Anonymous Relationship and it's not tagged there either. Each work spells the name a little differently (jackhyung, Jaek Hyeong, & Jac Hyung) but it's basically the same name. Idk why it's like that, it's just something I've noticed lol