Shundong recently completed the shoot for Rinnai’s “Bittersweet” commercial for its instant‑hot‑water water heater.

“Everyone’s disappointments are different, but the joy of instant gratification is the same.”

Shun Dong uses group image interpretation to tell the different hardships and pressures of the three characters in their lives: ordinary office workers, white-collar workers and entrepreneurs. After being exhausted, Lin Neyi Ruiyi Zero Cold Water Heater brings them a moment of relaxed enjoyment and interprets the theme.