Song Shuhang felt that his dad's gaze at him constantly hinted at a "psychological status of -1."
"Dad, although I don't know the 'Cleansing Dust Curse', I do know about spatial passages! It's the one Senior White just used, the one that got us from the scholarly faction to Wenzhou City in one breath." Song Shuhang felt the need to uphold his position in his parents' eyes, so he mentioned his most impressive ability involving space.
If he didn't uphold his status now, once his little sister was born, he, the eldest son, might become completely irrelevant in their parents' hearts.
"Can the spatial passage clean dust?" Papa Song asked a very down-to-earth question.
Song Shuhang paused for a moment, "No." — Dad, is that all you aspire to? Comparing my awesome spatial ability to dusting?
Papa Song: "Oh."
Song Shuhang: "..."