Is Takagi an Alpha or Beta? I think he is a Beta, but I'm not entirely sure.

I was thinking the same thing. Since he got in heat when he smelled the pheromones, I presume he's an alpha. Betas don't have heats so.... ╮(￣▽￣)╭

I think he is an alpha. And in the previous heat, Haruto already took his medicine, right?

maybe takagi is not very effect for omega pheromons..like kakurenbo honey manga..the alpha said he's not effected to much by omega pheromones..maybe takagi is like that too..and shota already take a medicine so the pheromones is not too strong...the second time shota didnt take the medicine and the pheromones is strong