Both r japanese BL
The plots r a bit different but a lot of similarities b/ w the characters
We have a dom and sub kinda relationship in both .
Both r dark in some ways but "happy of the end" is way more darker in the plots
Not similar in story but in some themes and the feel.
Both have two people living together in an apartment, trying to manage their relationship with some complex elements. If you like one you might like the other.