[7] In March 2016, Maeyama portrayed Kinshiro Kusatsu in the stage play adaptation of Cute High Earth Defense Club Love!.
[10] On August 4, 2017, Maeyama was cast as Katsumi Igarashi in the live-action film adaptation of the manga Make a Bow and Kiss, which was released in theaters on November 11, 2017.
[19] In August 2021, Maeyama appeared in the stage play adaptation of Crest of the Royal Family as Luca, a role that was double-cast with Kurumu Okamiya [ja].
[20] In November 2021, Maeyama appeared in the Japanese production of My Fair Lady as Freddy, a role that was double-cast with Takuto Teranishi [ja].
[22] As a result of his hiatus, he was recast in The Thousand Musketeers,[23] the Japanese production of Piaf,[24] and Hypnosis Mic: Division Rap Battle Rule the Stage.
[29] On September 8, 2024, Maeyama announced that he would be appearing in the stage play Aru Hi no Toori Ame to Tomo ni, his first acting role in three years.
[32] On November 28, 2024, Maeyama stated that he would not be focusing on acting for the time being but would remain active on his YouTube channel and other social media accounts.
[36] In 2024, Maeyama stated that they only dated for two months and had ended their relationship by the time they had starred together in the Japanese production of My Fair Lady in November 2021.
[36] On January 6, 2022, Shūkan Bunshun leaked text messages that the two had exchanged on Line prior to Kanda's death, along with allegations that issues in their relationship, specifically that Maeyama had been verbally abusive towards her, were part of the reason for her suicide.