I cannot see them as brothers at all actually. It's kinda like friends to lovers? But I know others wouldn't think the same like me. Everyone around them saw them as brothers since their childhood so that's understandable. But you love who you love. If it's not crime then go for your love <3

It says on the last page that chapter seven released in 2019, no? Then where is it :( I need more of this series 😭