Cosmic Soar SC 13D Scienjoy Holding / Cosmic Soar ownership change

Exhibit 3

JOINT FILING AGREEMENT

The undersigned hereby agree that the statement on Schedule 13D with respect to the Ordinary Shares of Scienjoy Holding Corporation dated as of September 21, 2020 is, and any amendments thereto signed by each of the undersigned shall be, filed on behalf of each of the undersigned pursuant to and in accordance with the provisions of Rule 13d-1(k) under the Securities Exchange Act of 1934, as amended.

Dated: September 21, 2020

COSMIC SOAR LIMITED

/s/ Sheng Hou

Name: Sheng Hou

Title: Director

/s/ Sheng Hou

Sheng Hou