Toh first gained notoriety through his Tumblr-based webcomic Tobias and Guy, which started in 2015, and focused on the human Guy and his demon boyfriend Tobias.[3] ComicsVerse described the series as one of the best magical-themed LGBT webcomics, praising its ability to humorous and heartwarming, but also dealing with topics such as coming out, depression, and mourning.[3] In the same year, Toh also worked as an artist on Luc Labelle's psychological horro graphic novel Outer God, based on the Cthulhu Mythos by H. P. Lovecraft.[4][1] During the same year, Toh would work on another Cthulhu-inspired project, as an illustrator for Imp House Game Company' dice game Chaos of Cthulhu.[1] In designing the Elder Gods, Toh attempted to ensure they resembled frescos.[1]
Toh worked with comic writer Ryan King in 2016, on the horror comic The Games We Played.[5] They would work again a second time in 2017, publishing the comic series Nico's Fortune, which was funded through Kickstarter.[5] The comic was described as an LGBT-friendly horror story that took inspiration from films such as Rear Window and Fright Night.[6] Another Kickstarter-funded project Toh worked on was the second volume of Greg Anderson-Elysée's Is'nana the Were-Spider.[7] Anderson-Elysée had been a fan of Toh's Tobias and Guy and was amazed at a pin-up he had drawn, which started their friendship and resulted in Toh working on the comic.[8] In 2019, during the 14th Glyph Comics Awards, an award ceremony recognizing the best comics created by and for people of colour, the comic won Story of the Year.[9]
In 2018, Toh would again work with Imp House Game Company on the game Mad Love.[2] Since 2019, Toh has been illustrating the webcomic Black Key Incubus, written by James Schleisman.[10] The comic focuses on witch Norman Castor who in an attempt to prove his abilities summons forth a Caliban, a demonic prince participating in a battle royal. The two men quickly realize they are soulmates and begin a relationship, while attempting to navigate both of their supernatural-based issues.[11]
As part of its Limerence Press imprint, which focuses on erotic and sex-education comics, Oni Press released Cheater Code in 2020, with Toh working alongside writer Steve Foxe.[12] The graphic novel focuses on Kennedy who is a gamer and, after having a fight with his boyfriend, is sucked into his video game library. Foxe described the story as taking inspiration from Shortbus, wanting it to contain sex but also "real emotional undercurrent and [a] worthwhile story".[12] In 2021, Toh worked alongside Caleb Palquist on another Kickstarter-funded comic titled Unicorn: Vampire Hunter.[13]
In 2022 it was announced that Toh was working on the anthology title Young Men in Love, published by A Wave Blue World and featuring 20 different stories focuses on gay romances. All of the stories are written and illustrated by queer men and assigned male at birth non-binary individuals that are attracted to men.[14] Toh worked on two stories; the pirate-themed "The Treasure Map to My Heart" written by Oliver Gerlach, and "Bright Idea" written by Charles Pulliam-Moore.[15]