First, let’s clarify the source material. School Days L×H for PSP was released by Kadokawa Shoten and 0verflow on July 3, 2008 (Japan only). It featured:

Since the PSP is no longer sold in stores, the only way to play this title legally for most is to track down a physical copy of the Japanese disc. However, the community standard for playing involves emulation.

A write-up on the status of School Days for the PSP reveals a complicated history for fans seeking an English experience. While the infamous visual novel is available on the handheld, the "English PSP ISO" you might be looking for is largely a ghost of the internet. The Reality of the PSP Version The PlayStation Portable version, titled School Days L×H

When we talk about the "top" , we are talking about three specific criteria: