Both is having a very good time travel plot with good storyline. Not too heavy yet really worth to watch, comedy side and romance also perfect!

Same theme, about foot street experience where lead was salary-man and they found happiness in food they meet

Both robot are created to replace a man place who died/unable to present. Robot chara is cold yet they have mission to do, and later you can see love in them

the main lead is same robot
- Love triagle
female lead is different yet theme is similar, later robot will develop feeling to human

273/5000
the characters both play a game of cost life. Gantz series and MotA series both contain elements of romance in gendre thriller and action.

both must beat the game itself : Gantz series (alien), MotA (game debug) and
*spoiler*
The ending is also the same as playing the lead left along (being guardian) the next waiting player is awaits.
Gantz is japanese trilogy movie with more gore and suspense which has their fans for taste of leave to imagination ending
MotA is korean drama, so people dont expect ending undone, hanging and need another SP