Yolton

Weston is a character of the day who appeared in Rotom's Wish!. He is the founding owner of the Lost Hotel.

Ten years in the past, Weston used to be the proud owner of the Lost Hotel, and gathered many Trainers at the hotel's battlefield to celebrate the hotel's opening. During this however, he was confronted by a crook named Mantle and his gang. Weston was forced into a Pokémon battle, with the ownership of the Lost Hotel at stake. Mantle chose Krookodile to battle, which intimidated Weston's Rotom and led Mantle to claim victory by default, and claim the ownership of the hotel. He appointed Weston as a counter clerk, while he used the hotel to lure visitors and steal their Pokémon. Weston often called out for Rotom to return to him, however Rotom never returned out of shame.

In the present day, Weston was working behind the hotel counter when Ash and his friends visited the hotel. He welcomed them and showed them a room. Later, his Rotom would appear to Ash's group, revealing what had occurred in the past. Afterwards, it managed to send them ten years back in time, converting an elevator into a time machine, to try to change the past and set things straight. The group arrived just as Mantle was about to declare himself the winner, and pulled Weston aside to come up with a winning strategy. Weston was hesitant, admitting he didn't have much battle experience.

With their plan set, Weston struck a deal, having Mantle never to steal other's Pokémon again if he was defeated. The group's strategy involved Rotom going into multiple appliances in the hotel's storage room, so it could form change and have a type-advantage over Krookodile. After a hard-fought battle, Rotom was able to defeat Krookodile, as such changing the past and making sure Weston remained the owner of the Lost Hotel. Rotom brought Ash and his friends back to a now changed future. In the revised present time, it was revealed that Weston had since hired Mantle and his henchmen as employees of the hotel, and that they had positively changed their behaviour because of this. The hotel was also shown to be very clean, as opposed to the dilapidated state it was in under Mantle's ownership. Ash and his friends arrived when Weston hosted the ten-year anniversary of the hotel. Weston told the audience how four nameless kids had appeared out of nowhere and helped him keep the Lost Hotel under his ownership.

(Source: Bulbapedia)