Guo shiro Huangan is a Chinese professional player ranked number one in Dota 2. His signature heroes include Morphling, Phantom Lancer, and Troll Warlord.

Shiro made his debut on the competitive scene in January 2019, when he joined the Ehome.Immortal academic team to try and qualify for major international tournaments. Throughout the year, he also continued to progress in his personal ranking indicator and was consistently at the top of the Chinese ladder.

However, shiro's career slowed down due to the pandemic, and Ehome.Immortal only had to compete in small scale regional tournaments. At the end of August 2020, the academic roster was disbanded. A month later, shiro moved to Phoenix Gaming, where he participated in commercial tournaments and then selected for the second division of DPC China. The team finished fourth in the standings of the second division of DPC China in Dota Pro Circuit 2021: Season 1 - China, securing their place in the league. Phoenix Gaming managed to make several accurate substitutions in the second round, allowing the roster to advance to the first division.

The successful result of shiro and his team attracted the attention of EHOME representatives, who signed contracts with the team members. Shiro spent the next year of his career in this organization, showing satisfactory results in the first division of DPC, but failed to get to the major tournament.

Many members of the cybersports community stated that shiro had outgrown the current team and should have changed teams. In December 2022, shiro joined the revamped PSG.LGD, the Chinese professional scene. With the team managed to qualify for the first major of his career - The Lima Major 2023, which resulted in the club's 9th-12th place. After that, the team took 2nd place at DPC CN 2023 Tour 2: Division I and received an invitation to ESL One Berlin Major 2023. At LAN Berlin, LGD took the same 9-12th place. The first success for shiro in LGD was the 3rd place at DreamLeague Season 20, where the team almost reached the grand finals, but fell out of the tournament in the final of the lower grid, losing to Gaimin Gladiators.

LGD Gaming participated in The International 2023, where they finished in 3rd place. The team made it all the way to the top grid playoff finals. After losing to Team Spirit in the finals of the upper grid, it went down to the lower grid, where it was defeated by Gaimin Gladiators.

In addition, the club participated in ESL One Kuala Lumpur 2023, where it got there at the direct invitation of the organizers as one of the finalists of TI 12. However, LGD did not have much success there, finishing in 9th-10th place and did not make it past the group stage.

In February 2024, Shiro competed with LGD in the BetBoom Dacha Dubai 2024 tournament, where the team finished in 7th-8th place. Shortly after, it became known that the club was facing financial difficulties, and the organization decided to temporarily suspend its participation in competitions.

In May 2024, LGD announced their return to the professional scene, and Shiro resumed competing under the legendary tag. The team participated in the qualifiers for The International 2024 and Riyadh Masters 2024, but only managed to qualify for the tournament in Riyadh.

At Riyadh Masters 2024, LGD showed rather weak results, finishing in 10th place after losing to Team Spirit in the first round of the lower bracket playoffs. The next tournament for Shiro was the Clavision Snow Ruyi Invitational, held in China. LGD confidently reached the semifinals of the upper bracket but once again suffered a defeat from Team Spirit. In the lower bracket, the team faced Natus Vincere and, after losing, finished the tournament in 5th place.

January 2, 2025, Shiro joined Tidebound. Under the new tag, the player debuted on PGL Wallachia: Season 3, where he took 7th-8th place.

On March 30, 2025, at FISSURE Universe Ep.4, Tidebound lost to Gaimin Gladiators in the lower bracket final, finishing in 3rd place. At ESL One Raleigh 2025 in April, the roster failed to advance beyond the group stage.

Later, at the end of April, the team competed at PGL Wallachia Season 4, where they lost in the quarterfinals of the lower bracket playoffs and left the tournament, finishing in 4th place.

In May, Tidebound participated in BLAST SLAM III, where they lost in the Playoff quarterfinals and exited the tournament in 5th–6th place.

• On May 14, 2025, the Chinese esports organization All Gamers Global fully acquired the TideBound Dota 2 roster.

In June 2025, Tidebound competed at PGL Wallachia Season 5 but failed to reach the playoffs. The team also failed to qualify for Riyadh Masters 2025, and after that, the team was removed from the Chinese esports organization All Gamers Global. On July 3, 2025, Tidebound finished their run at FISSURE Universe: Episode 5 after losing in the lower bracket quarterfinal. In August 2025, Tidebound became the champions of Clavision DOTA2 Masters 2025: Snow-Ruyi, and the team also earned $213,500 in prize money.

In September, Tidebound participated in The International 2025 where they managed to reach the playoffs but lost in the lower bracket and exited the tournament, finishing in 7-8th place. On November 12, Tidebound became the champions of DreamLeague Division 2 Season 2, earning $15,000 in prize money and a slot at DreamLeague Season 27. At PGL Wallachia Season 6, the team finished in 12th-14th place.

On December 24, it became known that Tidebound announced the closure of its Dota 2 division and the disbandment of the roster. On the same day, shiro became part of Vici Gaming’s updated roster.