The first signs of spring were visible in form of blossoms (⺀) appearing everywhere in front of the engine ((e)ng1), but then the winter (冬) came back and froze them. To keep warm, Doggy Dog (du) eats a hot soup with udon noodles (冬). Wearing high heels (夂) he also enjoys to keep moving and stomps on the frozen blossoms.
Mnemonic symbol: a balloon. The Queen of Hearts is disappointed by her balloons. She expected them to float upwards, but in the space station's bathroom, They float randomly in all directions.