Follow these steps sequentially. Before you begin, back up your database and wp-content folder. Use a plugin like UpdraftPlus or manually export via phpMyAdmin.
SELECT * FROM wp_users WHERE user_login LIKE '%ojol%' OR user_login LIKE '%prank%';
Delete fake users.
Search post content:
SELECT ID, post_title FROM wp_posts WHERE post_content LIKE '%ojek online prank%' OR post_content LIKE '%<script>%';
If Google marked your site as hacked: