Death Knell in the Bible
L’s hearing the bell refers to the death knell which can be heard three times: 1st as to warn he is going to die and the last one when he is dead.
Mello and Near Relationship
Mello is introduced alongside Near as a potential substitute for L. Both Mello and Near were raised at Wammy’s House, an orphanage established by Watari, L’s assistant.
Mello
Mihael Keehl Alias Mello
His birthday is 1992 in the anime and he dies on 2013 in the anime. He is 171 centimeters tall (5′ 7”), weighs 47 kilograms (104 pounds) and his blood type is A.
Near
Near is a young, slender, fair-skinned man with a petite build, gray eyes, and short, shaggy platinum blonde hair which he often plays with. He is only seen wearing a white, long-sleeved pajama top and white pajama pants. In the anime, Near’s pants are light blue.
Light and Kira
In Death Note, when Light relinquishes his memory of being Kira, why does his entire personality change? – Quora. It is a method of contrast. Light’s personality didn’t change. It reverted back to who he used to be before finding the Note.
L’s Real Name
L Lawliet His real name, L Lawliet, is only revealed in the guidebook Death Note 13: How to Read.