HIStory5: Love in the Future

A courier named Bo-Wei Ho accidentally time travels from the year 2000 to 2022, and ends up taking on a new identity with the name Johnny Dai.

Johnny Dai begins to help Hai-Yi and his search for someone close to him; Wynn Lin interviews at Poseidon Department Store and meets the general manager Vincent Liang.

Johnny Dai thinks of a way to get close to Lu Si-Chi; On the surface it looks like Wynn Lin and Vincent Liang have never met, but the two of them in fact share a story.

Johnny Dai takes on a new identity to get close to Lu Si-Chi; Vincent Liang and Wynn Lin gradually get closer through their interactions.

Hai-Yi, who has always doubted Johnny Dai's account of traveling through time, finally starts to believe him and is shaken to his core.

Seeing Johnny Dai beaten up for his sake, Hai-Yi feels distressed; Lu Si-Chi plans to collaborate with Vincent Liang, but she has plans of her own that go beyond work.

By chance, Johnny Dai runs into his childhood sweetheart Se-Mo Wei; Vincent Liang comes up with a plan to make Lu Si-Chi give up on her ulterior motives.

Hai-Yi realizes that he's known Johnny Dai ever since he was a little kid; Wynn Lin gets into serious trouble by his work colleagues and Vincent Liang comes to the rescue.

After the accident, Wynn Lin and Vincent Liang confirm their feelings for each other; Johnny Dai starts to test the waters and see if he actually has feelings for men.

When a misunderstanding occurs between Hai-Yi and Johnny Dai, Johnny takes the initiative to express his feelings.

The chairman of Poseidon Department Store is hospitalized due to a heart attack; will this affect the future of the company?

With his family background exposed, Hai-Yi takes over as the chairman. Johnny Dai is not happy with Hai-Yi concealing his past from him.

In order to make things better with Johnny Dai, Hai-Yi makes him the executive assistant to the chairman; Wynn Lin and Vincent Liang have their first real couple-fight.

Seeing Hai-Yi drinking by himself, Johnny Dai decides to be proactive and communicate with him; Wynn Lin applies for a transfer to another department as he is unwilling to keep working with Vincent Liang.

Wynn Lin is very concerned with the seemingly-intimate connection between Tony and Vincent Liang; Hai-Yi gets COVID and Johnny Dai moves in to take care of him.

When Johnny Dai moves into Hai-Yi's home, the two of them start to share a deeper lifestyle together; Vincent Liang invites Wynn Lin to celebrate Vincent's birthday together.

Hai-Yi's aunt tries to help her nephew find a suitable match; Wynn Lin asks a friend of Vincent's for emotional support.

Hai-Yi is unhappy with the fact that Johnny Dai keeps asking him to go on blind dates with others; Wynn Lin decides to take matters into his own hands in order to see Vincent Liang.

Hai-Yi and Vincent Liang work together to complete a project; Hai-Yi discovers that Johnny Dai seems to be harboring a secret.

Since it looks like Johnny Dai is about to return to his old life, will Hai-Yi be able to stop him?