[kenshiromusou]

Originally Posted by masaegu

1. It is the onomatopoeia describing the existence of tension in the air.

2. The second part is saying "because there are not many works in which multiple main characters are given equally great importance."

3. You are lost here on many levels. The speaker is talking "directly" to the fans. He wants them to do 2 things.

ご覧になってわくわくしていただいて、
Please watch it and get excited,
そのわくわく感 を持って、今後の展開にご期待ください
and with that excitement in hand, please look forward to the future development.

ありがとうございました、Masaegu先生。