They both have time travel and comedy and they're both great!
Summer Time Machine Blues (2005)
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Both deal with romance, time travel and a great deal of comedy.
Call me crazy, but I likened both shows on the similar premises they are based upon, which are seemingly super simple. Both movies also used a SINGLE location setting (STMB in the sharehouse, Alps Stand at the stand of the stadium), which makes both unique on their own rights.
Both movies take place in Japan during the Great Japanese bubble economy boom during 80s.................................................................