Both feature a complicated relationship between two non-related brothers, though in Unknown they have a close family bond, Gray Shelter features a more estranged relationship between the two. Both deal with heavy subject matters, though Unknown is a bit lighter where as Gray Shelter is definitely grimmer. Both sets of men find a reprieve within one another amidst a cruel world, even if it’s painful. Both beautiful series in my humble opinion, the perfect mix of pain and hopelessness followed by a glimmer of hope :)

Both feature a love story between two adopted brothers. Cherry blossoms after winter is a lot more fluffy though, while Unknown is more of a heavier series.

Both feature a romantic relationship between an artificial intelligence and a human. Customised companion does include infidelity though.

Both feature a man taking another man hostage and sexually abusing him. Both have very obsessive and possessive MLs in unhealthy relationships.

Both feature a man taking another man hostage and sexually abusing him. Their motives for doing so are different in each film but they are still as equally messed up. Throughout both movies the captives also start to have feelings for their captors.

This is another adaptation of the Love Syndrome books. Love syndrome III is based on book three of the series, set after the events of this movie which is based on books one and two. The cast is different.

Both of the series feature a love story between a human and a grim reaper. Also focuses on death too.