Both are Thai BLs that involve first one and then both of the MLs time traveling into the past and changing events in their lives. At some point in both dramas, one of the MLs is hospitalized and the other ML travels to the past to try to convince him not to meet/become involved with him, in the hopes of saving his life.
The concept of time travel. In be my favourite kawi travels from future to past to fix the past with crystal ball being the medium. In case of the warp effect Alex trvales to the future from past to fix the past with a camera being the medium. Both being fixing the past for a better future. The story and events are interesting and intruiging.
