I feel like the last few panels of Taemin talking about the guardrail being his goal and explaining all his actions in the scene are foreshadowing and being a metaphor for what happens after he acheives his "goal" which is revenge.
The little space after he stepped over the rail is what meaning he will have in his life after he gets revenge, so "naturally" one foot will follow the other and he plans on dying after achieving his goal
I feel like the last few panels of Taemin talking about the guardrail being his goal and explaining all his actions in the scene are foreshadowing and being a metaphor for what happens after he acheives his "goal" which is revenge.
The little space after he stepped over the rail is what meaning he will have in his life after he gets revenge, so "naturally" one foot will follow the other and he plans on dying after achieving his goal